Mattias Ekholm destroys Mikko Rantanen in a devastating hit

At the beginning of the second period, Ekholm delivered a huge hit to Rantanen, who did not see it coming. Ekholm took advantage of the fact that his target was not paying attention, delivering a devastating hit, which left Rantanen down on the ice. He needed help from the referee and medic to leave the ice.

Take a look at the replay that shows the hit from multiple angles:

There has been no official announcement regarding Rantanen's injury, it is evident from watching the replay that he has sustained some sort of injury. He needed help standing after the hit, and was struggling to maintain his balance, as he was assisted by the medic to leave the ice, the video shows that he was quite unsteady as he was leaving the ice.

This replay from the live broadcast shows that it took quite a long time for Rantanen to get up and leave the ice, it also shows how he needed help to get off the ice.

Rantanen has been quite a valuable player for the Avalanche, he has 102 points this season, losing him to an injury right before the playoffs will definitely negatively impact the Avalanche. It can also help the Oilers, who might face off against Colorado during their playoff run.

Source - Hockeyfeed: Monster hit from Mattias Ekholm takes out Mikko Rantanen